Inline tube - BB120AC - 69-77 GM Disc Brake Caliper Banjo Bolts, Crush Washers & Clips 8pc. Factory correct with 5/8" hex head. Used to connect the brake hose to the caliper. This is a 8 pc set that includes 2 bolts, 4 crush washers & clips. 1969 was the first year for the single piston caliper and this is the bolt that held the brake hose to the caliper. This is an exact reproduction of the original featuring the correct 5/8" hex and correct length plated in silver zinc. The brake hose gets a copper washer on each side and the bolt hold it to the caliper. This bolt has the fluid hole that allows the transfer of brake fluid from the hose to the caliper. This is a Inline Tube exclusive concourse quality exact reproduction, made to NOS specifications out of the.